Spring SAML extension for multiple IDP'S

we are planning to use spring saml extension as SP into our application.
But the requirement with our application is we need to communicate with more than 1 IDP's
Could any one please provide me/direct me to the example where it uses multiple IDP's

I also would like to know spring saml extension supports what kind of IDPS like OPenAM/Ping federate/ADFs2.0 etc...